Valve



W. S. REECE.

VALVE.

FILED DEC 7 APPLICA m 1,372,547, Patented Mar. 22, 1921.

2 ssss rs-snz'n 2.

I will!!!" 51144: "for UNITEMTATES PATENT omen.

WILLIAM s. :anncn, or PORTLAND, onneon.

VALVE.

To all whom tt may concernf 1 Be it known that I. WYILLIA S. Timon, a citizen of the United. States, residing at Portland, in the county of Multnomah and State of Oregon, have invented newuand useful. Improvements in Valves, of which the following is a specification.

This invention relates to new and-useful improvements in automatic valves for oil burning furnaces and the principal object of the invention is to provide means for regulating thexflow of 011 and steam to the burners of the furnace so as to maintain a uniform steam pressure in the boiler.

Another object olfthe invention is to provide means for adjusting theoil valves to meet the variations of pressure in the oil supplyfiand to yieldingly connect the oil valves to the stems so I asto prevent injury to the parts. y

In describing my invention in detail, reference will be hadwto. the accompanying drawing wherein like characters denote like through the apparatus.

rections from' said seats.

eral views, and in which: i

or corresponding parts throughoutthesev- Fig. 2 is an enlarged through the oil valves.

As shown in these views the invention consists of the oil casingl-andthesteam casing a 2 which are connected together by a spring cylinder 3 and the arm 4:. f

The oil casing is provided with pair of valve seats 5 spaced apart and the inlet for the oil is located betwen these seats, so that the oil passes in two streams in opposite di- 6 indicates a double shouldered valve member having the sectional view valves 7 and 8 connectedtherewith and these valves, arefadapted to; engagethe seats 5. It will be seen thevalves is of less diameter than the valve 7 so that the pressure of the oil tends to open the valves.

The steam casing is similarly formed with the exception that the inlet of steam is in an opposite direction through the valve seats and the outlet for the steam leadsfrom the specifier-nun of Letterslfatent. Patented Mar.22, 1921. Application filed December 7, .1918. Serial No. 265,687.

close in advance ofthesteam valves. This permits the oil valves to work closer to the seats.

The bottom of the steam casing is closed by a removable bonnet l l and this bonnet is soumade as to, form a cylinder 1112 to receive :a compensating spring :13 whichuacts upon :apistOn 14 having its stem 15 :adjustably secured to the lowerxsteam valve 9. A second plston 16 engages the lower end of the spring and is carried by a set screw 17 passing through the end of thecylinder. The upper part of the steam casing is'provided with a removable part 18, which together with thesaid casing forms a steam chamber. The upper end of this part 18 is provided with a flange 19 to receive the flange 20 formed on the lower end of the cylinder 3. These flanges are bolted together by the bolts 21 and they form a diaphragm chamber 22. A diaphragm 23 is placed insaid chamber and is held in position by being clamped between the flanges.

withthe diaphragm. An annular recess 29 is formed in the lower end of the cylinder and the piston is provided with a flange 30 which engages sald recess. By this means themovement of the piston is limited. 31 indicatesa compensating spring located in the cylinder 3 and engaging the piston 28. This spring may be adjusted by means of the piston 32 carried by the screwthreaded stem passing through the top of the cylinder and. provided with a handle 341:. The piston 28 is provided with a stem 35 which passes through the stem 33 and through the removable bottom 36 of the oil casing, and is connected. with the oil valves. The bottom 36 carries a packing gland 37 As before stated the oil valves seat themselves before the steam valves and to prevent injury to the parts I yieldingly connect said oil valves to the stem 35, To do this to receive the screw threaded end of the stem 85. This socket forms a shoulder 40 upon which is'seated the coiledspring 41.; r

The valve member 6 is of tubular form so as to surround said spring and core and to slidably engage said core and sleeve. The

spring engages with the lower face of the valve 8 and tends to hold the valve member in its highest position. The core passes throughsaid valve 8 and the-valve member is adjustable on the core by means of the nut 42 engaging with the projecting end of the core. It will thus be seen that the valve member is yieldingly held to the core by the spring. The upper end of the core is flattened as at 43 and this flattened end engages a slot 44 in the end of the stem 45 which is provided with a handle '46. This stem passes through the upper end of the oil casing. By turning the handle 47 the valve member may be adjusted on the core. It will thus be seen that the stem acting upon the diaphragm will automatically control the flow of oil to the burners. The oil entering the valve between the two seats relieves the pressure on the gland 37. It will be seen that the steam acting on the large valve 9 will tend to hold the valves 9 and 10 upon the seats and also tends to counteract the opening of the oil valves.

Should it become necessary to close the steam'valves in advance of the oil valves the operator may remove the bonnet 11 and adjust the seats more closely to the diaphragIn thus the steam valves will reach their seats while the diaphragm will pass on until the piston 28'reaches its seat. In this case there'will be a space between the plunger 25 and the diaphragm which will be taken-up as the steam pressure diminishes in the boiler. This will permit the compensating spring to force the diaphragm into contactwith the plunger, and thus open the .valves.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make such changes in the construction and in the combination and arrangement of the steam casing,

several parts, provided that such changes fall within the scope of the appended claims.

vHaving thus described the invention I claim 1. A device of the class described comprising an upper oil casing and a lower a pair of valve seats in each casing, means for delivering the oil between the seats of the oil casing and the steam above and below the seats of the steam casing, double shouldered valves engaging said seats, the lower shoulder of each valve being of greater diameter than the upper shoulder, a diaphragm chamber in communication with the steam casing, a diaphragm in said chamber, stems connected with the said valves and engaging said diaphragm and spring means for holding the stems in engagement with the diaphragm.

2. A device of the class described comprising an upper oil casing and a lower steam casing, a pair of valve seats in each casing, means for delivering the oil between the seats of the oil casing and the steam above and below the seats of the steam casing, double shouldered valves engaging said seats, the lower shoulder of each valve being of greater diameter than the upper shoulder, a diaphragm chamber in communication with the steam casing, a diaphragm in said chamber, stems connected with the said valves and engaging said diaphragm, spring means for holding the stems in engagement with the diaphragm and means for yieldingly connecting the oil valve with the stem.

3. A device. of the class described comprising an upper oil casing and a lower steam casing, a pair of valve seats in each casing, means for delivering oil between the seats of the oil casing and the steam above and below the seats of the steam casing, double shouldered valves engaging said seats, a core slidingly connecting with the oil valves, a spring located between the valve and core, a stem having screw threaded connection with the core, means for adjusting the core on said stem, a stem connected with the steam valve, a chamber connected with the steam casing and a diaphragm therein engaging the stems.

In testimony whereof I affix my signature.

WILLIAM s. 

